CN102996686B - Eliminate oil channel structures and the method for work thereof of hydrodynamic retarder air-fuel mixture - Google Patents
Eliminate oil channel structures and the method for work thereof of hydrodynamic retarder air-fuel mixture Download PDFInfo
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- CN102996686B CN102996686B CN201210514234.9A CN201210514234A CN102996686B CN 102996686 B CN102996686 B CN 102996686B CN 201210514234 A CN201210514234 A CN 201210514234A CN 102996686 B CN102996686 B CN 102996686B
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- retarder
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Abstract
The invention discloses a kind of oil channel structures eliminating hydrodynamic retarder air-fuel mixture, retarder end cap is provided with open and close valve, and open and close valve comprises valve chest, piston and stage clip, and piston and stage clip are positioned at valve chest inside, stage clip heads on piston, stays piston mobile space in valve chest; Valve chest has entrance, outlet and driving mouth, the active chamber of stator impeller and impeller of rotor runs through retarder housing, the entrance of retarder end cap connecting valve housing forms the second runner, outlet runs through retarder end cap and is communicated with fuel tank, drives mouth to connect gas circuit control module.The invention also discloses a kind of method of work of oil channel structures of hydrodynamic retarder air-fuel mixture.The present invention solves air-fuel mixture when the braking of existing hydrodynamic retarder loads, and sprays the problem of a large amount of oil gas during braking unloading.
Description
Technical field
The present invention relates to the hydrodynamic retarder for Motor Vehicle auxiliary braking, be specifically related to a kind of oil channel structures and the method for work thereof of eliminating hydrodynamic retarder air-fuel mixture.
Background technique
Hydrodynamic retarder is a kind of complemental brake system for motor vehicle, its essence is a kind of rotary damping device, utilizes impeller of rotor to drive fluid and stator impeller to impact, produces reverse vortex moment of torsion, be the heat energy of fluid by the kinetic transformation of vehicle, and then make vehicle deceleration.Hydrodynamic retarder working medium is fluid, and driven medium is pressurized air.
In current known hydrodynamic retarder technology, when hydrodynamic retarder is in idle running (brakeless state), be air dielectric in stator and impeller of rotor active chamber, impeller of rotor rotates, drive air to do vortex pressurization loss campaign, the air after pressurization will accumulate in tank bottoms, form the gas blanket with certain positive pressure, rotating speed is higher, and positive pressure is larger.
When hydrodynamic retarder switches to the moment of working state, the gas of certain pressure is filled with top of oil-tank by gas circuit control module, fluid is pressed into stator impeller and impeller of rotor active chamber, fluid does vortex loss campaign under the drive of impeller of rotor, produces reverse vortex moment of torsion.
But, the positive pressure gas layer that hydrodynamic retarder produces at tank bottoms in idle running (brakeless state) process, the working state ambient atmos pressure that applies at top of oil-tank of moment is switched to hydrodynamic retarder, instantaneously fluid being mixed with air, dripping being mingled with tiny fluid in gas.
In the moment of hydrodynamic retarder braking unloading, be mingled with tiny fluid in gas to drip and will drain into ambient atmosphere along with gas, under the operating mode that Motor Vehicle frequently uses hydrodynamic retarder to brake, the air-fuel mixture that braking produces when loading will cause the phenomenon of braking " oil spout " when unloading, in hydrodynamic retarder fuel tank, fluid will constantly reduce, and leaking of fluid also produces certain pollution to environment in addition.
Summary of the invention
The deficiency that the present invention exists to overcome above prior art, provides a kind of oil channel structures eliminating hydrodynamic retarder air-fuel mixture, solves air-fuel mixture when the braking of existing hydrodynamic retarder loads, sprays the problem of a large amount of oil gas during braking unloading.
Another object of the present invention is to the method for work of the oil channel structures that a kind of hydrodynamic retarder air-fuel mixture is provided.
Object of the present invention is realized by following technological scheme: the oil channel structures of this elimination hydrodynamic retarder air-fuel mixture, comprise central rotating shaft, retarder housing, retarder end cap, stator impeller and impeller of rotor, impeller of rotor is fixedly set on central rotating shaft, central rotating shaft, stator impeller and impeller of rotor are arranged on retarder enclosure interior, retarder enclosure interior is provided with fuel tank, and retarder end cap covers on retarder housing;
Described retarder end cap is provided with open and close valve, and open and close valve comprises valve chest, piston and stage clip, and piston and stage clip are positioned at valve chest inside, and stage clip heads on piston, stays piston mobile space in valve chest;
Valve chest has entrance, outlet and driving mouth, the active chamber of stator impeller and impeller of rotor runs through retarder housing, the entrance of retarder end cap connecting valve housing forms the second runner, outlet runs through retarder end cap and is communicated with fuel tank, drives mouth to connect gas circuit control module.
Preferably, described gas circuit control module is a four-way control valve, and the first of four-way control valve connects pressurized gas suction tude, and second mouthful connects ambient air, the 3rd mouthful of driving mouth by driving tracheae to connect open and close valve, the 4th mouthful connects fuel tank by charge and exhaust pipe.
Preferably, described stator impeller is connected ball float seat with the active chamber of impeller of rotor by pipeline, and ball float seat connects ambient air.
Preferably, described stator impeller is connected heat exchanger with the active chamber of impeller of rotor by return tube, and heat exchanger is communicated with retarder housing by one-way valve; The joint of described one-way valve and buffer housing is positioned at the ullage of fuel tank inner fluid.。
Preferably, the first flow of described oil channel structures comprises successively according to the flow direction: fuel tank gateway, oil-feed runner, active chamber, oil return runner, return tube, heat exchanger, one-way valve.
Preferably, bearing is arranged with between described stator impeller and central rotating shaft.
Preferably, the connecting part of described retarder end cap and central rotating shaft is arranged with supporting base and oil sealing.
Eliminate the method for work of the oil channel structures of hydrodynamic retarder air-fuel mixture:
When hydrodynamic retarder dallies, open and close valve, fuel tank are connected with ambient air by gas circuit control module respectively, and open and close valve is in open mode, and piston is under the elastic force effect of stage clip, and the entrance and exit of open and close valve communicates, and the ball float of ball float seat is in full state; Impeller of rotor rotates and produces vortex high pressure draught, from the air that ball float seat enters, is discharged to ambient air, eliminates the generation of air-fuel mixture phenomenon with this mechanism through the outlet of the second runner, open and close valve, the cavity on fuel tank top, charge and exhaust pipe;
When hydrodynamic retarder is in braking state, pressurized gas enters driving tracheae from pressurized gas suction tude, and the piston of open and close valve, under the promotion of pressurized gas, overcomes the active force of stage clip, has blocked entrance and outlet, makes open and close valve be in closed condition; Impeller of rotor rotates, pressurized gas enters charge and exhaust pipe from pressurized gas suction tude in addition, pressurized gas is the fluid press-in oil-feed runner in fuel tank, then get back in retarder housing through active chamber, oil return runner, return tube, heat exchanger, one-way valve successively, produce braking torque, the ball float of ball float seat is by fluid jack-up in addition, and fluid does not leak outside, and ambient air also cannot enter; By the closing function of open and close valve, ensure the seal of first flow short circle.
The present invention has following advantage relative to prior art:
1, the oil channel structures of this elimination hydrodynamic retarder air-fuel mixture, for the auxiliary braking of motor vehicle.When hydrodynamic retarder is in idle running (brakeless state), by open and close valve opening function, Pneumatic control module auxiliary under, hydrodynamic retarder is communicated with ambient atmosphere.
2, when hydrodynamic retarder is in braking state, by open and close valve closing function, Pneumatic control module auxiliary under, ensure the containment integrity of hydrodynamic retarder inner loop.
3, by the opening and closing function of open and close valve, form the oil channel structures of a set of elimination hydrodynamic retarder air-fuel mixture, solve air-fuel mixture when the braking of existing hydrodynamic retarder loads, during braking unloading, spray the problem of a large amount of oil gas, fluid in fuel tank does not reduce, can not to environment.
4, after heavy-duty vehicle installs hydrodynamic retarder, when long ramp driving, can avoid using primary brake system, solve friction brake long-time continuous to use and cause " thermal friction inefficacys " and " overheated blow out " problem, substantially increase the Security of vehicle long slope travelling brake, improve travelling comfort and the yarage of vehicle, reduce the fatigue strength of driver, reduce brake noise.When flat pavement running, except emergency braking and stopping brake, this hydrodynamic retarder can be used alone completely carry out the speed of a motor vehicle and control to keep with spacing, high degree reduces the frequency of utilization of foundation brakes, improve level road traffic safety performance, reduce car operation car originally, improve vehicle borne Economy, have broad application prospects.
Accompanying drawing explanation
Fig. 1 is the oil channel structures schematic diagram of elimination hydrodynamic retarder air-fuel mixture of the present invention.(open and close valve is opened)
Fig. 2 is the oil channel structures schematic diagram of elimination hydrodynamic retarder air-fuel mixture of the present invention.(open and close valve closedown)
Number in the figure and title as follows:
| 1 | Central rotating shaft | 21 | Retarder housing |
| 22 | Retarder end cap | 31 | Stator impeller |
| 32 | Impeller of rotor | 4 | Fuel tank |
| 51 | First flow | 511 | Oil return runner |
| 512 | Oil-feed runner | 513 | Return tube |
| 52 | Second runner | 541 | Ball float |
| 542 | Ball float seat | 6 | Heat exchanger |
| 7 | One-way valve | 8 | Gas circuit control module |
| 81 | Charge and exhaust pipe | 82 | Pressurized gas suction tude |
| 83 | Ambient air mouth | 84 | Drive tracheae |
| 9 | Open and close valve | 91 | Valve chest |
| 92 | Entrance | 93 | Outlet |
| 94 | Piston | 95 | Stage clip |
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
The oil channel structures of elimination hydrodynamic retarder air-fuel mixture as depicted in figs. 1 and 2, comprise central rotating shaft 1, retarder housing 21, retarder end cap 22, stator impeller 31 and impeller of rotor 32, impeller of rotor 32 is fixedly set on central rotating shaft 1, it is inner that central rotating shaft 1, stator impeller 31 and impeller of rotor 32 are arranged on retarder housing 21, retarder housing 21 inside is provided with fuel tank 4, and retarder end cap 22 covers on retarder housing 21; Retarder end cap 22 is provided with open and close valve 9, open and close valve 9 comprises valve chest 91, piston 94 and stage clip 95, and it is inner that piston 94 and stage clip 95 are positioned at valve chest 91, and stage clip 95 heads on piston 94, stays piston 94 mobile space in valve chest 91; Valve chest 91 has entrance 92, outlet 93 and drives mouth 96, the active chamber of stator impeller 31 and impeller of rotor 32 runs through retarder housing 21, the entrance 92 of retarder end cap 22 connecting valve housing 91 forms the second runner 52, outlet 93 runs through retarder end cap 22 and is communicated with fuel tank 4, drives mouth 96 to connect gas circuit control module 8.
Gas circuit control module 8 is a four-way control valve, the first of four-way control valve connects pressurized gas suction tude 82, second mouthful of connection ambient air mouth the 83, three mouthful of the 96, four mouthful, driving mouth passing through to drive tracheae 84 to connect open and close valve 9 connects fuel tank 4 by charge and exhaust pipe 81.Stator impeller 31 is connected ball float seat 542 with the active chamber of impeller of rotor 32 by pipeline, and ball float seat 542 connects ambient air.Stator impeller 31 is connected heat exchanger 6 with the active chamber of impeller of rotor 32 by return tube 513, heat exchanger 6 is communicated with retarder housing 21 by one-way valve 7, described one-way valve 7 and the joint of buffer housing 21 are positioned at the ullage of fuel tank 4 inner fluid, and heat exchanger 6 enters cold water and goes out hot water.The first flow 51 of oil channel structures comprises successively according to the flow direction: fuel tank gateway 514, oil-feed runner 512, active chamber, oil return runner 511, return tube 513, heat exchanger 6, one-way valve 7.Bearing 54 is arranged with between stator impeller 31 and central rotating shaft 1.Retarder end cap 22 is arranged with supporting base 55 and oil sealing 56 with the connecting part of central rotating shaft 1.
Eliminate the method for work of the oil channel structures of hydrodynamic retarder air-fuel mixture:
When hydrodynamic retarder dallies, open and close valve 9, fuel tank 4 are connected with ambient air by gas circuit control module 8 respectively, and open and close valve 9 is in open mode, and piston 94 is under the elastic force effect of stage clip 95, entrance 92 and the outlet 93 of open and close valve 9 communicate, and the ball float 541 of ball float seat 542 is in full state; Impeller of rotor 32 rotates and produces vortex high pressure draught, from the air that ball float seat 542 enters, be discharged to ambient air through the outlet 93 of the second runner 52, open and close valve 9, the cavity on fuel tank 4 top, charge and exhaust pipe 81, eliminate the generation of air-fuel mixture phenomenon with this mechanism;
When hydrodynamic retarder is in braking state, pressurized gas enters from pressurized gas suction tude 82 and drives tracheae 84, and the piston 94 of open and close valve 9, under the promotion of pressurized gas, overcomes the active force of stage clip 95, block entrance 92 and outlet 93, made open and close valve 9 be in closed condition; Impeller of rotor 32 rotates, pressurized gas enters charge and exhaust pipe 81 from pressurized gas suction tude 82 in addition, pressurized gas is the fluid press-in oil-feed runner 512 in fuel tank 4, then get back in retarder housing 21 through active chamber, oil return runner 511, return tube 513, heat exchanger 6, one-way valve 7 successively, produce braking torque, the ball float 541 of ball float seat 542 is by fluid jack-up in addition, and fluid does not leak outside, and ambient air also cannot enter; By the closing function of open and close valve 9, ensure the seal of first flow 51 short circle.
Above-mentioned embodiment is the preferred embodiments of the present invention, can not limit the present invention, and any of other does not deviate from technological scheme of the present invention and the substitute mode of the change made or other equivalence, is included within protection scope of the present invention.
Claims (5)
1. eliminate the oil channel structures of hydrodynamic retarder air-fuel mixture, comprise central rotating shaft, retarder housing, retarder end cap, stator impeller and impeller of rotor, impeller of rotor is fixedly set on central rotating shaft, central rotating shaft, stator impeller and impeller of rotor are arranged on retarder enclosure interior, retarder enclosure interior is provided with fuel tank, retarder end cap covers on retarder housing, it is characterized in that:
Described retarder end cap is provided with open and close valve, and open and close valve comprises valve chest, piston and stage clip, and piston and stage clip are positioned at valve chest inside, and stage clip heads on piston, stays piston mobile space in valve chest;
Valve chest has entrance, outlet and driving mouth, the active chamber of stator impeller and impeller of rotor runs through retarder housing, the entrance of retarder end cap connecting valve housing forms the second runner, outlet runs through retarder end cap and is communicated with fuel tank, drives mouth to connect gas circuit control module;
Described gas circuit control module is a four-way control valve, and the first of four-way control valve connects pressurized gas suction tude, and second mouthful connects ambient air, the 3rd mouthful of driving mouth by driving tracheae to connect open and close valve, and the 4th mouthful connects fuel tank by charge and exhaust pipe;
Described stator impeller is connected ball float seat with the active chamber of impeller of rotor by pipeline, and ball float seat connects ambient air;
Described stator impeller is connected heat exchanger with the active chamber of impeller of rotor by return tube, and heat exchanger is communicated with retarder housing by one-way valve;
The joint of described one-way valve and buffer housing is positioned at the ullage of fuel tank inner fluid.
2. the oil channel structures of elimination hydrodynamic retarder air-fuel mixture according to claim 1, is characterized in that: the first flow of described oil channel structures comprises successively according to the flow direction: fuel tank gateway, oil-feed runner, active chamber, oil return runner, return tube, heat exchanger, one-way valve.
3. the oil channel structures of elimination hydrodynamic retarder air-fuel mixture according to claim 1, is characterized in that: be arranged with bearing between described stator impeller and central rotating shaft.
4. the oil channel structures of elimination hydrodynamic retarder air-fuel mixture according to claim 1, is characterized in that: the connecting part of described retarder end cap and central rotating shaft is arranged with supporting base and oil sealing.
5. the method for work of the oil channel structures of elimination hydrodynamic retarder air-fuel mixture according to claim 2, is characterized in that:
When hydrodynamic retarder dallies, open and close valve, fuel tank are connected with ambient air by gas circuit control module respectively, and open and close valve is in open mode, and piston is under the elastic force effect of stage clip, and the entrance and exit of open and close valve communicates, and the ball float of ball float seat is in full state; Impeller of rotor rotates and produces vortex high pressure draught, from the air that ball float seat enters, is discharged to ambient air through the outlet of the second runner, open and close valve, the cavity on fuel tank top, charge and exhaust pipe;
When hydrodynamic retarder is in braking state, pressurized gas enters driving tracheae from pressurized gas suction tude, and the piston of open and close valve, under the promotion of pressurized gas, overcomes the active force of stage clip, has blocked entrance and outlet, makes open and close valve be in closed condition; Impeller of rotor rotates, pressurized gas enters charge and exhaust pipe from pressurized gas suction tude in addition, pressurized gas is the fluid press-in oil-feed runner in fuel tank, then get back in retarder housing through active chamber, oil return runner, return tube, heat exchanger, one-way valve successively, produce braking torque, the ball float of ball float seat is by fluid jack-up in addition, and fluid does not leak outside, and ambient air also cannot enter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210514234.9A CN102996686B (en) | 2012-12-04 | 2012-12-04 | Eliminate oil channel structures and the method for work thereof of hydrodynamic retarder air-fuel mixture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210514234.9A CN102996686B (en) | 2012-12-04 | 2012-12-04 | Eliminate oil channel structures and the method for work thereof of hydrodynamic retarder air-fuel mixture |
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| Publication Number | Publication Date |
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| CN102996686A CN102996686A (en) | 2013-03-27 |
| CN102996686B true CN102996686B (en) | 2015-09-30 |
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| CN103335038B (en) * | 2013-06-24 | 2015-10-21 | 宁波华盛汽车部件有限公司 | Hydraulic oil controlling device in hydrodynamic retarder |
| CN103671637B (en) * | 2013-09-10 | 2017-05-03 | 深圳市特尔佳科技股份有限公司 | Oil circuit structure of hydrodynamic retarder and method for lowering no-load loss of hydrodynamic retarder |
| CN105697606A (en) * | 2016-03-01 | 2016-06-22 | 宁波华盛联合制动科技有限公司 | Shell structure for accurately testing oil pressure of hydraulic retarder |
| CN105697607B (en) * | 2016-03-01 | 2018-02-06 | 宁波华盛联合制动科技有限公司 | The Oiltank structure of Retarder |
| CN105840520B (en) * | 2016-05-24 | 2017-11-14 | 广东美的暖通设备有限公司 | Fuel control device, compressor, screw compressor and air-conditioning system |
| CN108006109A (en) * | 2017-12-25 | 2018-05-08 | 深圳市特尔佳科技股份有限公司 | A kind of Retarder oil-returning structure |
| CN108591307B (en) * | 2018-06-29 | 2023-08-18 | 吉林市天宇科技有限责任公司 | Hydraulic retarder |
| CN109469693A (en) * | 2018-12-27 | 2019-03-15 | 广东交通职业技术学院 | A kind of waterpower retarder and its control method |
| CN113864365B (en) * | 2021-11-17 | 2022-04-22 | 浙江铁流离合器股份有限公司 | Water medium hydraulic retarder installed on whole vehicle |
| CN114738400B (en) * | 2022-03-12 | 2023-06-30 | 富奥汽车零部件股份有限公司 | Hydraulic retarder oil circuit control system |
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|---|---|---|---|---|
| US3774734A (en) * | 1970-04-18 | 1973-11-27 | Daimler Benz Ag | Hydrodynamic brake for vehicles, especially motor vehicles |
| US5771997A (en) * | 1994-11-26 | 1998-06-30 | Voith Turbo Gmbh | Braking system in conjunction with a hydrodynamic retarder, specifically for motor vehicles |
| CN201304984Y (en) * | 2008-11-28 | 2009-09-09 | 江苏大学 | Hydraulic retarder which can be used for controlling vehicle at constant speed |
| CN202209366U (en) * | 2011-09-22 | 2012-05-02 | 深圳市特尔佳科技股份有限公司 | Hydraulic retarder |
| CN202545655U (en) * | 2012-04-23 | 2012-11-21 | 陕西法士特齿轮有限责任公司 | Hydraulic retarder |
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2012
- 2012-12-04 CN CN201210514234.9A patent/CN102996686B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3774734A (en) * | 1970-04-18 | 1973-11-27 | Daimler Benz Ag | Hydrodynamic brake for vehicles, especially motor vehicles |
| US5771997A (en) * | 1994-11-26 | 1998-06-30 | Voith Turbo Gmbh | Braking system in conjunction with a hydrodynamic retarder, specifically for motor vehicles |
| CN201304984Y (en) * | 2008-11-28 | 2009-09-09 | 江苏大学 | Hydraulic retarder which can be used for controlling vehicle at constant speed |
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| CN202545655U (en) * | 2012-04-23 | 2012-11-21 | 陕西法士特齿轮有限责任公司 | Hydraulic retarder |
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Granted publication date: 20150930 Termination date: 20211204 |